Add 21/48 and 3/7
21/48 + 3/7 is 97/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 7 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Likewise, for the 2nd fraction, since 7 × 48 = 336,
3/7 = 3 × 48/7 × 48 = 144/336 - Add the two like fractions:
147/336 + 144/336 = 147 + 144/336 = 291/336 - 291/336 simplified gives 97/112
- So, 21/48 + 3/7 = 97/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48+3/7 21/48+6/7 21/96+3/7 21/48+3/14 63/48+3/7 21/48+9/7 21/48+3/21 21/48+15/7 21/48+3/35 21/48+21/7 21/48+3/49